Regarding your gateway: you appear to have lost your gateway configuration.
Go into
smitty tcpip
minimum
select your main adapter
Enter
This will re-establish your default gateway. It happens sometimes, I don't
know exactly under what circumstances. But I keep an eye out for it.
Regarding the netstat core: At current AIX levels, the netstat -r
frequently
fails like that, as does netstat -a. Something to do with the linked list
changing before
the command reading it finishes. You could try AIX support, but in all of
the pmrs I
have searched, no one seemed to think that was a problem.
Anybody else?
Cordially,
Leslie A. Clark
IBM Global Services - Systems Mgmt & Networking
Detroit
"Treptow, Craig" <Treptow.Craig AT principal DOT com>@tkg.com on 04/24/2001
06:07:38 PM
Please respond to IBM NetView Discussion <nv-l AT tkg DOT com>
Sent by: owner-nv-l AT tkg DOT com
To: "'IBM NetView Discussion'" <nv-l AT tkg DOT com>
cc:
Subject: RE: [NV-L] Network problems preventing status polling and
discovery??
Thanks for the help. Since that tracing and then stop/start of netmon
hasn't caused netmon to do anything different that I've seen, I got to
looking in the netmon.trace file, and found this:
Tue Apr 24 16:59:47 CDT 2001
Note: default gateway not configured. You should ensure
that your network configuration does not require a default gateway.
**** Warnings from /usr/OV/bin/nmcheckconf configuration check script
This started showing up this past Saturday evening when I was attempting to
clear the database and start a rediscovery. Netview had some problems that
I worked with support on, but I did notice this until today. Anyway...
I do have a default gateway:
# netstat -rn
Routing tables
Destination Gateway Flags Refs Use If PMTU Exp
Groups
Route Tree for Protocol Family 2 (Internet):
default 162.131.204.10 UGc 0 0 en1 - -
127/8 127.0.0.1 U 16 939760 lo0 - -
Segmentation fault(coredump)
#
Of course the coredump, isn't a good thing. <SIGH>
Perhaps all of this is related??
> -----Original Message-----
> From: Leslie Clark [mailto:lclark AT US.IBM DOT COM]
> Sent: Tuesday, April 24, 2001 4:41 PM
> To: IBM NetView Discussion
> Subject: Re: [NV-L] Network problems preventing status polling and
> discovery??
>
>
> I would guess that netmon was very busy and would turn on
> tracing to see
> what it is doing. That's usually what it means when the
> demandpoll dialog
> hangs there empty, in my experience. If it won't answer to a
> 'netmon -a 3'
> then it probably also won't answer to a 'netmon -M -1', so
> you would have
> to change it at the daemon startup (use smitty nv6000 or serversetup).
> Last time I did that for the problem you describe I found that it was
> working
> over the seedfile, which contained a few thousand devices. I
> cut that back
> to just the rules and netmon could get on with its work.
>
> Cordially,
>
> Leslie A. Clark
> IBM Global Services - Systems Mgmt & Networking
> Detroit
>
> "Treptow, Craig" <Treptow.Craig AT principal DOT com>@tkg.com on 04/24/2001
> 04:51:11 PM
>
> Please respond to IBM NetView Discussion <nv-l AT tkg DOT com>
>
> Sent by: owner-nv-l AT tkg DOT com
>
>
> To: "NetView List (E-mail)" <nv-l AT tkg DOT com>
> cc:
> Subject: [NV-L] Network problems preventing status polling
> and discovery??
>
>
>
> Hi. We are running Netview 6.0.2 on AIX. I am having trouble getting
> Netview to perform a discovery, or at least it is very
> inconsistent. For
> the last couple of days, we have been fighting other problems
> that have
> been making network response times very slow for applications. I'm
> theorizing that some of our network problems are causing
> Netview to timeout
> on SNMP polls, etc.
>
> Along with this, any demand poll I've tried, just sits there.
> I'm also
> theorizing that this might be related, and that it is simply
> retrying and
> timing out, but I'm not sure.
>
> I'm looking for ways to prove these theories. Does anybody
> have any ideas
> on how to do that? I've struggle to find the answers in the
> archives of
> this list so far.
>
> Thanks.
>
> Craig Treptow
> Principal Financial Group
> I/S Network Administration
> (515) 247-6207
>
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